0:00
Super 8s: Four operations in context by Mr Barton Maths
Select the skills to practice, and then click Go!
Foundational skills
Bridging 10 with single digits
\[ 7 + 8 \]
Add single digits summing to > 10.
Lining up digits in columns
\[ \text{Column Layout} \]
Write numbers in columns ready to add.
No exchange
2-digit + 2-digit (no exchange)
\[ 34 + 25 \]
Add two 2-digit numbers, no carrying.
3-digit + 3-digit (no exchange)
\[ 423 + 251 \]
Add two 3-digit numbers, no carrying.
4-digit + 4-digit (no exchange)
\[ 3421 + 2534 \]
Add two 4-digit numbers, no carrying.
Mixed digit lengths (no exchange)
\[ 342 + 51 \]
Different lengths, no carrying.
Single exchange (ones)
2-digit + 2-digit (exchange ones)
\[ 47 + 35 \]
Carry from ones column only.
3-digit + 3-digit (exchange ones)
\[ 234 + 518 \]
Carry from ones column only.
4-digit + 4-digit (exchange ones)
\[ 2347 + 3528 \]
Carry from ones column only.
Mixed digit lengths (exchange ones)
\[ 347 + 28 \]
Carry from ones column only.
Single exchange (tens)
2-digit + 2-digit (exchange tens)
\[ 54 + 72 \]
Carry from tens column only.
3-digit + 3-digit (exchange tens)
\[ 352 + 271 \]
Carry from tens column only.
4-digit + 4-digit (exchange tens)
\[ 2352 + 3271 \]
Carry from tens column only.
Mixed digit lengths (exchange tens)
\[ 352 + 71 \]
Carry from tens column only.
Single exchange (hundreds)
3-digit + 3-digit (exchange hundreds)
\[ 572 + 651 \]
Carry from hundreds column only.
4-digit + 4-digit (exchange hundreds)
\[ 2572 + 3651 \]
Carry from hundreds column only.
Mixed digit lengths (exchange hundreds)
\[ 572 + 651 \]
Carry from hundreds column only.
Single exchange (thousands)
4-digit + 4-digit (exchange thousands)
\[ 5234 + 7123 \]
Carry from thousands column only.
Double exchange
Same digit lengths (double exchange)
\[ 478 + 356 \]
Exactly two columns require carrying.
Mixed digit lengths (double exchange)
\[ 478 + 56 \]
Exactly two columns require carrying.
Triple exchange
Same digit lengths (triple exchange)
\[ 789 + 654 \]
Exactly three columns require carrying.
Mixed digit lengths (triple exchange)
\[ 789 + 654 \]
Exactly three columns require carrying.
Special cases
Adding three 2-digit numbers
\[ 34 + 57 + 28 \]
Add three 2-digit numbers.
Adding three 3-digit numbers
\[ 234 + 457 + 128 \]
Add three 3-digit numbers.
Adding four 2-digit numbers
\[ 23 + 45 + 34 + 27 \]
Add four 2-digit numbers.
Adding four 3-digit numbers
\[ 123 + 234 + 345 + 156 \]
Add four 3-digit numbers.
Timer (Optional)
0:00
Question